/*
  Copyright 2019 Equinor ASA.

  This file is part of the Open Porous Media project (OPM).

  OPM is free software: you can redistribute it and/or modify
  it under the terms of the GNU General Public License as published by
  the Free Software Foundation, either version 3 of the License, or
  (at your option) any later version.

  OPM is distributed in the hope that it will be useful,
  but WITHOUT ANY WARRANTY; without even the implied warranty of
  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  GNU General Public License for more details.

  You should have received a copy of the GNU General Public License
  along with OPM.  If not, see <http://www.gnu.org/licenses/>.
*/

#ifndef OPM_GROUP_HPP
#define OPM_GROUP_HPP

#include <opm/input/eclipse/EclipseState/Phase.hpp>
#include <opm/input/eclipse/EclipseState/Util/IOrderSet.hpp>

#include <opm/input/eclipse/Schedule/Group/GPMaint.hpp>

#include <opm/input/eclipse/Deck/UDAValue.hpp>

#include <opm/input/eclipse/Units/UnitSystem.hpp>

#include <cstddef>
#include <map>
#include <optional>
#include <string>

namespace Opm {

namespace RestartIO {
struct RstGroup;
}

class SummaryState;
class UDQConfig;
class UDQActive;

class Group {
public:
    // A group can have both injection controls and production controls set at
    // the same time, i.e. this enum is used as a bitmask.
    enum class GroupType : unsigned {
        NONE = 0,
        PRODUCTION = 1,
        INJECTION = 2,
        MIXED = 3
    };

    enum class ExceedAction {
        NONE = 0,
        CON = 1,
        CON_PLUS = 2,   // String: "+CON"
        WELL = 3,
        PLUG = 4,
        RATE = 5
    };
    static const std::string ExceedAction2String( ExceedAction enumValue );
    static ExceedAction ExceedActionFromString( const std::string& stringValue );
    static ExceedAction ExceedActionFromInt(const int value);

    enum class InjectionCMode  : int {
        NONE = 0,
        RATE = 1,
        RESV = 2,
        REIN = 4,
        VREP = 8,
        FLD  = 16,
        SALE = 32
    };
    static const std::string InjectionCMode2String( InjectionCMode enumValue );
    static InjectionCMode InjectionCModeFromString( const std::string& stringValue );
    static InjectionCMode InjectionCModeFromInt(int ecl_int);
    static int            InjectionCMode2Int(InjectionCMode enumValue);

    enum class ProductionCMode : int {
        NONE = 0,
        ORAT = 1,
        WRAT = 2,
        GRAT = 4,
        LRAT = 8,
        CRAT = 16,
        RESV = 32,
        PRBL = 64,
        FLD  = 128
    };
    static const std::string ProductionCMode2String( ProductionCMode enumValue );
    static ProductionCMode ProductionCModeFromString( const std::string& stringValue );
    static ProductionCMode ProductionCModeFromInt(int ecl_int);
    static int             ProductionCMode2Int(Group::ProductionCMode cmode);

    enum class GuideRateProdTarget {
        OIL = 0,
        WAT = 1,
        GAS = 2,
        LIQ = 3,
        RES = 4,
        COMB = 5,
        WGA =  6,
        CVAL = 7,
        INJV = 8,
        POTN = 9,
        FORM = 10,
        NO_GUIDE_RATE = 11
    };
    static GuideRateProdTarget GuideRateProdTargetFromString( const std::string& stringValue );
    static GuideRateProdTarget GuideRateProdTargetFromInt(int ecl_id);

    enum class GuideRateInjTarget {
        RATE = 1,
        VOID = 2,
        NETV = 3,
        RESV = 4,
        NO_GUIDE_RATE = 5
    };
    static GuideRateInjTarget GuideRateInjTargetFromString( const std::string& stringValue );
    static GuideRateInjTarget GuideRateInjTargetFromInt(int ecl_id);
    static int                GuideRateInjTargetToInt(GuideRateInjTarget target);

    struct GroupInjectionProperties
    {
        GroupInjectionProperties() = default;
        explicit GroupInjectionProperties(std::string group_name_arg);
        GroupInjectionProperties(std::string group_name_arg, Phase phase, const UnitSystem& unit_system);

        std::string name{};
        Phase phase = Phase::WATER;
        InjectionCMode cmode = InjectionCMode::NONE;
        UDAValue surface_max_rate;
        UDAValue resv_max_rate;
        UDAValue target_reinj_fraction;
        UDAValue target_void_fraction;
        std::optional<std::string> reinj_group;
        std::optional<std::string> voidage_group;
        bool available_group_control = true;
        double guide_rate = 0;
        GuideRateInjTarget guide_rate_def = GuideRateInjTarget::NO_GUIDE_RATE;

        static GroupInjectionProperties serializationTestObject();

        int injection_controls = 0;
        bool operator==(const GroupInjectionProperties& other) const;
        bool operator!=(const GroupInjectionProperties& other) const;
        bool updateUDQActive(const UDQConfig& udq_config, UDQActive& active) const;
        bool uda_phase() const;
        void update_uda(const UDQConfig& udq_config, UDQActive& udq_active, UDAControl control, const UDAValue& value);

        template<class Serializer>
        void serializeOp(Serializer& serializer)
        {
            serializer(this->name);
            serializer(phase);
            serializer(cmode);
            serializer(surface_max_rate);
            serializer(resv_max_rate);
            serializer(target_reinj_fraction);
            serializer(target_void_fraction);
            serializer(reinj_group);
            serializer(voidage_group);
            serializer(injection_controls);
            serializer(available_group_control);
            serializer(guide_rate);
            serializer(guide_rate_def);
        }
    };

    struct GroupLimitAction
    {
        ExceedAction allRates{ExceedAction::NONE};
        ExceedAction water{ExceedAction::NONE};
        ExceedAction gas{ExceedAction::NONE};
        ExceedAction liquid{ExceedAction::NONE};

        template<class Serializer>
        void serializeOp(Serializer& serializer)
        {
            serializer(allRates);
            serializer(water);
            serializer(gas);
            serializer(liquid);
        }

        bool operator==(const GroupLimitAction& other) const
        {
            return (this->allRates == other.allRates)
                && (this->water == other.water)
                && (this->gas == other.gas)
                && (this->liquid == other.liquid);
        }
    };

    struct InjectionControls
    {
        Phase phase;
        InjectionCMode cmode;
        double surface_max_rate;
        double resv_max_rate;
        double target_reinj_fraction;
        double target_void_fraction;
        int injection_controls = 0;
        std::string reinj_group;
        std::string voidage_group;
        double guide_rate;
        GuideRateInjTarget guide_rate_def = GuideRateInjTarget::NO_GUIDE_RATE;
    };

    struct GroupProductionProperties
    {
        GroupProductionProperties();
        GroupProductionProperties(const UnitSystem& unit_system, const std::string& gname);

        std::string name;
        ProductionCMode cmode = ProductionCMode::NONE;
        GroupLimitAction group_limit_action;
        UDAValue oil_target;
        UDAValue water_target;
        UDAValue gas_target;
        UDAValue liquid_target;
        double guide_rate = 0;
        GuideRateProdTarget guide_rate_def = GuideRateProdTarget::NO_GUIDE_RATE;
        UDAValue resv_target;
        bool available_group_control = true;
        static GroupProductionProperties serializationTestObject();

        int production_controls = 0;
        bool operator==(const GroupProductionProperties& other) const;
        bool operator!=(const GroupProductionProperties& other) const;
        bool updateUDQActive(const UDQConfig& udq_config, UDQActive& active) const;
        void update_uda(const UDQConfig& udq_config, UDQActive& udq_active, UDAControl control, const UDAValue& value);

        template<class Serializer>
        void serializeOp(Serializer& serializer)
        {
            serializer(name);
            serializer(cmode);
            serializer(group_limit_action);
            serializer(oil_target);
            serializer(water_target);
            serializer(gas_target);
            serializer(liquid_target);
            serializer(guide_rate);
            serializer(guide_rate_def);
            serializer(resv_target);
            serializer(available_group_control);
            serializer(production_controls);
        }
    };

    struct ProductionControls
    {
        ProductionCMode cmode;
        GroupLimitAction group_limit_action;
        double oil_target;
        double water_target;
        double gas_target;
        double liquid_target;
        double guide_rate;
        GuideRateProdTarget guide_rate_def = GuideRateProdTarget::NO_GUIDE_RATE;
        double resv_target = 0;
        int production_controls = 0;
    };

    Group();
    Group(const std::string& group_name, std::size_t insert_index_arg, double udq_undefined_arg, const UnitSystem& unit_system);
    Group(const RestartIO::RstGroup& rst_group, std::size_t insert_index_arg, double udq_undefined_arg, const UnitSystem& unit_system);

    static Group serializationTestObject();

    std::size_t insert_index() const;
    const std::string& name() const;
    bool is_field() const;

    bool update_gefac(double gefac, bool use_efficiency_in_network);

    // [[deprecated("use Group::control_group() or Group::flow_group()")]]
    const std::string& parent() const;
    std::optional<std::string> control_group() const;
    std::optional<std::string> flow_group() const;

    bool updateParent(const std::string& parent);
    bool updateInjection(const GroupInjectionProperties& injection);
    bool updateProduction(const GroupProductionProperties& production);
    bool isProductionGroup() const;
    bool isInjectionGroup() const;
    void setProductionGroup();
    void setInjectionGroup();
    double getGroupEfficiencyFactor(bool network = false) const;
    bool useEfficiencyInNetwork() const;

    std::size_t numWells() const;
    bool addGroup(const std::string& group_name);
    bool hasGroup(const std::string& group_name) const;
    void delGroup(const std::string& group_name);
    bool addWell(const std::string& well_name);
    bool hasWell(const std::string& well_name) const;
    void delWell(const std::string& well_name);

    const std::vector<std::string>& wells() const;
    const std::vector<std::string>& groups() const;
    bool wellgroup() const;
    ProductionControls productionControls(const SummaryState& st) const;
    InjectionControls injectionControls(Phase phase, const SummaryState& st) const;
    bool hasInjectionControl(Phase phase) const;
    const GroupProductionProperties& productionProperties() const;
    const std::map<Phase , GroupInjectionProperties>& injectionProperties() const;
    const GroupInjectionProperties& injectionProperties(Phase phase) const;
    const GroupType& getGroupType() const;
    ProductionCMode prod_cmode() const;
    InjectionCMode injection_cmode() const;
    Phase injection_phase() const;
    bool has_control(ProductionCMode control) const;
    bool has_control(Phase phase, InjectionCMode control) const;
    bool productionGroupControlAvailable() const;
    bool injectionGroupControlAvailable(const Phase phase) const;
    const std::optional<GPMaint>& gpmaint() const;
    void set_gpmaint(GPMaint gpmaint);
    void set_gpmaint();
    bool has_gpmaint_control(Phase phase, InjectionCMode cmode) const;
    bool has_gpmaint_control(ProductionCMode cmode) const;
    bool as_choke() const;
    void as_choke(const std::string& group);

    bool operator==(const Group& data) const;
    const std::optional<Phase>& topup_phase() const;

    template<class Serializer>
    void serializeOp(Serializer& serializer)
    {
        serializer(m_name);
        serializer(m_insert_index);
        serializer(udq_undefined);
        serializer(unit_system);
        serializer(group_type);
        serializer(gefac);
        serializer(use_efficiency_in_network);
        serializer(parent_group);
        serializer(m_wells);
        serializer(m_groups);
        serializer(injection_properties);
        serializer(production_properties);
        serializer(m_topup_phase);
        serializer(m_gpmaint);
    }

private:
    bool hasType(GroupType gtype) const;
    void addType(GroupType new_gtype);

    std::string m_name;
    std::size_t m_insert_index;
    double udq_undefined;
    UnitSystem unit_system;
    GroupType group_type;
    double gefac;
    bool use_efficiency_in_network;

    std::string parent_group;
    IOrderSet<std::string> m_wells;
    IOrderSet<std::string> m_groups;

    std::map<Phase, GroupInjectionProperties> injection_properties;
    GroupProductionProperties production_properties;
    std::optional<Phase> m_topup_phase;
    std::optional<GPMaint> m_gpmaint;
    std::optional<std::string> m_choke_group;
};

Group::GroupType operator |(Group::GroupType lhs, Group::GroupType rhs);
Group::GroupType operator &(Group::GroupType lhs, Group::GroupType rhs);

}

#endif // OPM_GROUP_HPP
